Membership
Tour
Register
Log in
Selection or treatment of the reducing gases
Follow
Industry
CPC
C21B13/0073
This industry / category may be too specific. Please go to a parent level for more data
Parent Industries
C
CHEMISTRY METALLURGY
C21
Iron metallurgy
C21B
MANUFACTURE OF IRON OR STEEL
C21B13/00
Making spongy iron or liquid steel, by direct processes
Current Industry
C21B13/0073
Selection or treatment of the reducing gases
Industries
Overview
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Direct reduction process utilizing hydrogen
Patent number
11,952,638
Issue date
Apr 9, 2024
Midrex Technologies, Inc.
Keith Marshall Bastow-Cox
C21 - METALLURGY OF IRON
Information
Patent Grant
High-efficiency photonic furnaces for metal production
Patent number
11,898,798
Issue date
Feb 13, 2024
LIMELIGHT STEEL INC.
Olivia Faye Dippo
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High-efficiency photonic furnaces for metal production
Patent number
11,852,412
Issue date
Dec 26, 2023
LIMELIGHT STEEL INC.
Olivia Faye Dippo
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Systems and methods for steel production
Patent number
11,788,158
Issue date
Oct 17, 2023
PATHFINDER HOLDINGS CORP.
James Maurice Small
C21 - METALLURGY OF IRON
Information
Patent Grant
Integration of DR plant and electric DRI melting furnace for produc...
Patent number
11,788,159
Issue date
Oct 17, 2023
Midrex Technologies, Inc.
Todd Michael Astoria
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for direct reduction using vent gas
Patent number
11,773,459
Issue date
Oct 3, 2023
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Robert Millner
C21 - METALLURGY OF IRON
Information
Patent Grant
Method and device for direct reduction with dry vent gas de-dusting
Patent number
11,697,855
Issue date
Jul 11, 2023
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Thomas Eder
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for direct reduction in a fluidized bed
Patent number
11,685,961
Issue date
Jun 27, 2023
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Roland Eisl
C21 - METALLURGY OF IRON
Information
Patent Grant
Direct reduction process utilizing hydrogen
Patent number
11,499,201
Issue date
Nov 15, 2022
Midrex Technologies, Inc.
Todd Michael Astoria
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Method and apparatus for producing direct reduced iron utilizing a...
Patent number
11,203,791
Issue date
Dec 21, 2021
Danieli & C. Officine Meccaniche SpA
Michele Condosta
C21 - METALLURGY OF IRON
Information
Patent Grant
Methods and systems for syngas production and for efficient, flexib...
Patent number
11,142,832
Issue date
Oct 12, 2021
Battelle Energy Alliance, LLC
James E. O'Brien
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Reduction gas extraction from saturated top gas
Patent number
11,078,549
Issue date
Aug 3, 2021
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Andreas Steinwandter
C21 - METALLURGY OF IRON
Information
Patent Grant
Inductive bath plasma cupola
Patent number
11,073,049
Issue date
Jul 27, 2021
Plasma Tech Holdings, LLC
James Charles Juranitch
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Direct reduction with coal gasification and coke oven gas
Patent number
11,021,766
Issue date
Jun 1, 2021
Midrex Technologies, Inc.
Haruyasu Michishita
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Method and system for producing high-carbon DRI using syngas
Patent number
10,927,424
Issue date
Feb 23, 2021
HYL TECHNOLOGIES, S.A. DE C.V.
Eugenio Zendejas-Martinez
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Flash ironmaking system and method
Patent number
10,851,430
Issue date
Dec 1, 2020
BEIJING SHANTIE TECHNOLOGY CO., LTD.
Shuhua Deng
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of utilizing furnace off-gas for reduction of iron oxide pel...
Patent number
10,787,717
Issue date
Sep 29, 2020
Narong Limastian
C21 - METALLURGY OF IRON
Information
Patent Grant
Method and apparatus for producing metallic iron from iron oxide fines
Patent number
10,661,340
Issue date
May 26, 2020
Reid Reactors LLC
Kenneth John Reid
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Multi-stage suspension magnetizing roasting-magnetic separation sys...
Patent number
10,543,491
Issue date
Jan 28, 2020
Northeastern University
Yuexin Han
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Grant
Cost effective plasma combined heat and power system
Patent number
10,539,043
Issue date
Jan 21, 2020
Plasma Tech Holdings, LLC
James Charles Juranitch
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Methods and systems for increasing the carbon content of sponge iro...
Patent number
10,508,314
Issue date
Dec 17, 2019
Midrex Technologies, Inc.
Mirmohammadyousef Motamedhashemi
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method and apparatus for producing metallic iron from iron oxide fines
Patent number
10,434,576
Issue date
Oct 8, 2019
Reid Reactors LLC
Kenneth John Reid
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Molten iron manufacturing apparatus and molten iron manufacturing m...
Patent number
10,422,582
Issue date
Sep 24, 2019
Posco
Jonghwun Jung
C21 - METALLURGY OF IRON
Information
Patent Grant
Processes for synthesis of reducing gaseous mixtures starting from...
Patent number
10,351,423
Issue date
Jul 16, 2019
Eduardo Luigi Szego
C21 - METALLURGY OF IRON
Information
Patent Grant
Pneumatic ore charging
Patent number
10,337,076
Issue date
Jul 2, 2019
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Robert Millner
C21 - METALLURGY OF IRON
Information
Patent Grant
Methods and systems for increasing the carbon content of sponge iro...
Patent number
10,316,376
Issue date
Jun 11, 2019
Midrex Technologies, Inc.
Mirmohammadyousef Motamedhashemi
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Use of top gas in direct reduction processes
Patent number
10,260,117
Issue date
Apr 16, 2019
Saudi Basic Industries Corporation
Ahmed H. Al-Nazr
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Composite iron pellets
Patent number
10,214,788
Issue date
Feb 26, 2019
Saudi Basic Industries Corporation
Mohamed Bahgat Saddik
C21 - METALLURGY OF IRON
Information
Patent Grant
Methods and systems for producing high carbon content metallic iron...
Patent number
10,113,209
Issue date
Oct 30, 2018
Midrex Technologies, Inc.
Mirmohammadyousef Motamedhashemi
C21 - METALLURGY OF IRON
Information
Patent Grant
Method to operate a smelt cyclone
Patent number
10,100,378
Issue date
Oct 16, 2018
TATA STEEL NEDERLAND TECHNOLOGY BV
Hendrikus Koenraad Albertus Meijer
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
METHOD OF OPERATING AN ELECTRIC ARC FURNACE AND STEEL MILL
Publication number
20240191314
Publication date
Jun 13, 2024
PAUL WURTH S.A.
Jan KRULL
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-EFFICIENCY PHOTONIC FURNACES FOR METAL PRODUCTION
Publication number
20240183614
Publication date
Jun 6, 2024
Limelight Steel Inc.
Olivia Faye DIPPO
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
REDUCED IRON PRODUCTION METHOD AND REDUCED IRON PRODUCTION DEVICE
Publication number
20240175101
Publication date
May 30, 2024
JFE STEEL CORPORATION
Koki TERUI
C21 - METALLURGY OF IRON
Information
Patent Application
SYSTEMS AND METHODS FOR PRODUCING SYNGAS FROM BIO-OIL
Publication number
20240150170
Publication date
May 9, 2024
Charm Industrial, Inc.
Peter Reinhardt
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD AND SYSTEM FOR PRODUCING DIRECT REDUCED METAL
Publication number
20240150859
Publication date
May 9, 2024
GREENIRON H2 AB
Hans MURRAY
C21 - METALLURGY OF IRON
Information
Patent Application
A method of manufacturing of a steel product in several steelmaking...
Publication number
20240132984
Publication date
Apr 25, 2024
ARCELORMITTAL
Hugo DA GAMA CAMPOS
C21 - METALLURGY OF IRON
Information
Patent Application
Method of manufacturing steel
Publication number
20240132983
Publication date
Apr 25, 2024
ARCELORMITTAL
Hugo DA GAMA CAMPOS
C21 - METALLURGY OF IRON
Information
Patent Application
METAL OXIDE MATERIAL REDUCTION MEANS
Publication number
20240124948
Publication date
Apr 18, 2024
LUOSSAVAARA-KIIRUNAVAARA AB
Ola Eriksson
C21 - METALLURGY OF IRON
Information
Patent Application
ARRANGEMENT AND PROCESS FOR CHARGING IRON ORE TO, AND/OR DISCHARGIN...
Publication number
20240093330
Publication date
Mar 21, 2024
HYBRIT Development AB
Farzad Mohseni-Mörner
C21 - METALLURGY OF IRON
Information
Patent Application
BLEED-OFF GAS RECOVERY IN A DIRECT REDUCTION PROCESS
Publication number
20240084410
Publication date
Mar 14, 2024
HYBRIT Development AB
Farzad Mohseni-Mörner
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
HIGH-EFFICIENCY PHOTONIC FURNACES FOR METAL PRODUCTION
Publication number
20240077256
Publication date
Mar 7, 2024
Limelight Steel Inc.
Olivia Faye DIPPO
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
SMART HYDROGEN PRODUCTION FOR DRI MAKING
Publication number
20240052441
Publication date
Feb 15, 2024
PAUL WURTH S.A.
Cristiano CASTAGNOLA
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL PRODUCTION FROM IRON MELT
Publication number
20240052442
Publication date
Feb 15, 2024
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Robert MILLNER
C21 - METALLURGY OF IRON
Information
Patent Application
PROCESS FOR THE PRODUCTION OF CARBURIZED SPONGE IRON
Publication number
20240035103
Publication date
Feb 1, 2024
HYBRIT Development AB
Farzad Mohseni-Mörner
C21 - METALLURGY OF IRON
Information
Patent Application
HYDROGEN REDUCTION OF IRON ORE CONCENTRATE IN LOOSE LAYERS AND COMP...
Publication number
20240026475
Publication date
Jan 25, 2024
University of Utah Research Foundation
Hong Yong R. Sohn
C21 - METALLURGY OF IRON
Information
Patent Application
SYSTEMS AND METHODS FOR STEEL PRODUCTION
Publication number
20230416854
Publication date
Dec 28, 2023
Pathfinder Holdings Corp.
James Maurice Small
C21 - METALLURGY OF IRON
Information
Patent Application
LOW TEMPERATURE DIRECT REDUCTION OF METAL OXIDES VIA THE IN SITU PR...
Publication number
20230357884
Publication date
Nov 9, 2023
Environmental Clean Technologies Limited
Keith Michael HENLEY-SMITH
C21 - METALLURGY OF IRON
Information
Patent Application
Blast furnace for ironmaking production
Publication number
20230349014
Publication date
Nov 2, 2023
ARCELORMITTAL
Dominique SERT
C21 - METALLURGY OF IRON
Information
Patent Application
COUPLING SYSTEM OF COPPER SLAG RECYCLING AND CO2 MINERALIZATION BAS...
Publication number
20230323490
Publication date
Oct 12, 2023
Greenore Cleantech (Shanghai) Co., Ltd
Xiaozhou Zhou
C21 - METALLURGY OF IRON
Information
Patent Application
MODULAR DIRECT REDUCTION SYSTEMS AND ASSOCIATED METHODS
Publication number
20230295755
Publication date
Sep 21, 2023
Fluor Technologies Corporation
Jonathan M. DAILEY
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR OPERATING A METALLURGIC PLANT FOR PRODUCING IRON PRODUCTS
Publication number
20230272495
Publication date
Aug 31, 2023
PAUL WURTH S.A.
Jan KRULL
C21 - METALLURGY OF IRON
Information
Patent Application
SYSTEMS AND METHODS FOR STEEL PRODUCTION
Publication number
20230257838
Publication date
Aug 17, 2023
Pathfinder Holdings Corp.
James Maurice Small
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD AND DEVICE FOR DIRECT REDUCTION WITH DRY VENT GAS DE-DUSTING
Publication number
20230250499
Publication date
Aug 10, 2023
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Thomas EDER
C21 - METALLURGY OF IRON
Information
Patent Application
A DIRECT REDUCTION SYSTEM AND RELATIVE PROCESS
Publication number
20230243004
Publication date
Aug 3, 2023
Danieli & C. Officine Meccaniche Spa
Barbara Franco
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD AND DEVICE FOR HARVESTING INNER ENERGY FROM EXHAUST GASES
Publication number
20230242433
Publication date
Aug 3, 2023
Messer Austria GmbH
Martin Demuth
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
ENRICHMENT OF IRON FROM BAUXITE WASTE IN CHEMICAL LOOPING COMBUSTION
Publication number
20230235419
Publication date
Jul 27, 2023
University of Kentucky Research Foundation
Neng Huang
C21 - METALLURGY OF IRON
Information
Patent Application
STEELMAKING LINE AND METHOD OF PRODUCING REDUCED IRON
Publication number
20230175084
Publication date
Jun 8, 2023
JFE STEEL CORPORATION
Koichi TAKAHASHI
C21 - METALLURGY OF IRON
Information
Patent Application
INTEGRATED SYSTEMS EMPLOYING CARBON OXIDE ELECTROLYSIS IN STEEL PRO...
Publication number
20230175088
Publication date
Jun 8, 2023
Twelve Benefit Corporation
Enrique Cintron
C21 - METALLURGY OF IRON
Information
Patent Application
Process for the Production of Sponge Iron
Publication number
20230175086
Publication date
Jun 8, 2023
HYBRIT Development AB
Stefan Grönkvist
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING REDUCED IRON
Publication number
20230167516
Publication date
Jun 1, 2023
NIPPON STEEL CORPORATION
Takanobu INADA
C21 - METALLURGY OF IRON